CN2283227Y - Engine body main bearing dead eye axiality measuring device - Google Patents
Engine body main bearing dead eye axiality measuring device Download PDFInfo
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- CN2283227Y CN2283227Y CN 96241341 CN96241341U CN2283227Y CN 2283227 Y CN2283227 Y CN 2283227Y CN 96241341 CN96241341 CN 96241341 CN 96241341 U CN96241341 U CN 96241341U CN 2283227 Y CN2283227 Y CN 2283227Y
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Abstract
The utility model relates to an engine body main bearing dead eye axiality measuring device which is suitable for measuring the axiality of a main bearing dead eye of an engine body and similar parts, and the utility model is mainly composed of a gap bridge plate mechanism, an axiality measuring unit, a positioning unit and a signal processing unit. The utility model is characterized in that both ends of a supporting rod of the gap bridge plate mechanism are provided with two displacement sensors which respectively measure the diameter and the axiality of an eye, and meanwhile, the sensors can be rotated so as to measure diameters and the axiality in different sections. The utility model is suitable for measuring the axiality of parts whose eye diameters have basically same sizes, and each hole of the parts has basically identical axial distance. The utility model has high measuring precision and automatic processing to measuring data, and measuring results are not affected by the size deviation of the diameter.
Description
The utility model relates to a kind of workpiece form and position error measurement device, is specially adapted to the measurement of engine body main bearing hole right alignment.
The diameter of each main bearing hole is basic identical in the engine body, the axial distance basically identical between each hole.Right alignment size between each main bearing hole is an important indicator that influences the engine body quality.Reduce the size of its coaxiality error, can reduce the wearing and tearing of engine body main bearing hole, improve the engine running quality, avoid accidents such as excessively heated axle, tile kilning, guarantee the security of operation of engine.Therefore the right alignment of engine body main bearing hole is the essential items for inspection in the engine body maintenance process, and the main both at home and abroad at present method that adopts has:
1. steel wire collimates method: its measuring principle is to use a steel wire along each dead eye center line horizontal direction tension, with the imaginary axial line of this steel wire as each dead eye, measure distance between each hole and the steel wire with milscale or other measurement means, thereby obtain the size of its right alignment.This method is owing to be subjected to the winding degree of steel wire self and the influence of the contact error when measuring, and measuring accuracy is low, measures extremely inconvenient.
2. dummy shaft determination method: the measuring principle of this method and above steel wire collimation method are similar, and different is with a dummy shaft replacement steel wire, has improved measuring accuracy to a certain extent.But its measuring accuracy is still lower, measures also inconvenient.
3. optical telescope autocollimation method: this be use at present a kind of comparatively widely measuring method.Its measurement mechanism is mainly by crossing bridge plate mechanism, constituting by the optical autocollimating telescope with crossing to fix the measuring unit of a catoptron and constitute positioning unit by level in the bridge plate mechanism.During measurement, be bearing in respectively on two tested dead eyes crossing bridge plate mechanism, collimating telescope can be measured angle between the optical axis of line between the center, two bearings hole and telescope collimator system by being fixed on catoptron in the bridge plate mechanism, cross bridge plate mechanism then and move an axial distance between the two bearings hole along axial line successively, collimating telescope obtains line between adjacent two dead eye centers and the angle between the collimating telescope optical axis successively, can obtain right alignment size between the body dead eye by artificial calculating.The major defect that this measuring method exists is: 1) be subjected to the influence of the measuring accuracy of optical autocollimating telescope self, measuring accuracy is lower, the more important thing is that this measuring method is when measuring right alignment, diameter dimension deviation [the Li Ronghua that has comprised each hole in its measurement result, the limitation of optical measurement body spindle hole right alignment, " rolling stock technology ", 21 pages of the 1st phases of nineteen ninety-five]; Need the human eye long-term observation when 2) measuring, cause reading error easily, and measurement data needs artificial treatment and comparatively loaded down with trivial details, efficiency of measurement is low.[diesel locomotive maintenance, China Railway Press, 1994: P60-66].
The purpose of this utility model provides a kind of device of measuring engine body main bearing hole right alignment size.It has measuring accuracy height, measurement result and is not subjected to the influence of each bore dia dimensional discrepancy, carries out advantage such as data processing automatically, can also directly measure the diameter in each hole simultaneously, enlarges its measurement function.
The purpose of this utility model is to realize like this.Engine body main bearing hole coaxality measuring mechanism is formed by crossing bridge plate mechanism, coaxality measurement unit, positioning unit and signal processing unit.The said bridge plate mechanism of crossing is made up of a pole, two bearings and four supporting cylinders.A bearing is fixed at an end and middle part pole respectively, and the axial distance between two bearings is the axial distance between the measured bearing hole; Fix two supporting cylinders respectively at the two ends of two bearing bottoms, these four supporting cylinders contact with tested two holes respectively during measurement; Said positioning unit mainly is made up of a level, and positioning unit was fixed on the pole in the bridge plate mechanism, to guarantee that crossing bridge plate mechanism when measuring is in correct measuring position at every turn.It is characterized in that the said length of crossing the pole in the bridge plate mechanism is the twice axial distance in measured bearing hole; Displacement transducer and corresponding rotating shaft that the displacement transducer that said coaxality measurement unit is used by the measurement diameter, measurement right alignment are used are formed, these two displacement transducers and corresponding two rotating shafts are fixed together, two rotating shafts flexibly connect with the two ends of crossing the pole in the bridge plate mechanism respectively, can the pole center be that rotate in the center of circle, to measure the diameter and the right alignment of different cross section, rotating shaft is fixed by a trip bolt after adjusting the position.
The principle of work of measurement mechanism is: measurement mechanism (except the signal processing unit) is placed measured hole, and two bearings crossing in the bridge plate mechanism contact with adjacent two measured holes; The diameter in first hole of displacement sensor that the measurement diameter is used in the coaxality measurement unit, the 3rd center, hole of displacement sensor that the measurement right alignment is used in the coaxality measurement unit is with respect to former two deviations that the hole line of centres is a benchmark.Each later on axial distance that moves between one two hole, measure according to above same step, until each main bearing hole that measures engine body, can obtain the diameter, adjacent holes in each hole right alignment size with each hole in the total length by data processing unit.Owing to obtained the size of each bore dia simultaneously, in measurement result, carry out simple algebraically plus-minus, can eliminate of the influence of each bore dia deviation to the coaxality measurement result.
Advantage of the present utility model is: one, and adopt high accuracy displacement sensor to measure, its measuring accuracy height can be eliminated the influence of diameter dimension deviation to the coaxality measurement result; Its two, measurement parameter is many, can obtain the diameter dimension and the coaxiality error in each hole simultaneously.
Fig. 1 is the front view of engine body main bearing hole coaxality measuring mechanism
Fig. 2 is the A-A cut-open view of engine body main bearing hole coaxality measuring mechanism
1 is positioning unit, and 2 is signal processing unit, and 3 is pole, and 4 is bearing, and 5 are the supporting cylinder, and 6 is measured hole, and 7 for measuring the displacement transducer that diameter is used, and 8 are rotating shaft, and 9 is lock-screw, and 10 for measuring the displacement transducer that right alignment is used.
With the accompanying drawing is that the utility model is described in further detail for embodiment: the engine body main bearing hole coaxality measuring mechanism that the utility model provides, its structural representation as shown in Figure 1, 2.This measurement mechanism is formed by crossing bridge plate mechanism, coaxality measurement unit, positioning unit (1) and signal processing unit (2).The said bridge plate mechanism of crossing is made up of a pole (3), two bearings (4) and four supporting cylinders (5), a bearing (4) is fixed at an end and middle part pole (3) respectively, axial distance between two bearings (4) is the axial distance between the measured bearing hole (6), the fixed bearing cylinder (5) respectively at the two ends of two bearings (4) bottom, these four supporting cylinders (5) contact with tested two holes (6) during measurement; Said positioning unit (1) is made of level, is fixed on the pole (3) in the bridge plate mechanism, when guaranteeing to measure at every turn, crosses bridge plate mechanism and is in correct measuring position.It is characterized in that: the said length of crossing the pole (3) in the bridge plate mechanism is the twice axial distance in measured bearing hole; Displacement transducer (10) and corresponding rotating shaft (8) that the displacement transducer (7) that said coaxality measurement unit is used by the measurement diameter, measurement right alignment are used are formed; Described displacement transducer (7), (10) are fixed together with corresponding two rotating shafts (8), two rotating shafts (8) flexibly connect with the two ends of crossing the pole (3) in the bridge plate mechanism respectively, can the pole center be that rotate in the center of circle, to measure diameter and the right alignment in the different cross section, rotating shaft (8) is fixed on the pole (3) by a trip bolt (9).Inductance displacement sensor is adopted in displacement transducer (7), (10).
In the above-mentioned measurement scheme that the utility model proposes, after measurement mechanism assembled, two displacement transducers in the measurement mechanism should return to zero.During measurement, measurement mechanism (except the signal processing unit) is put into the main bearing hole (6) of tested engine body, made that the supporting cylinder (5) on first bearing (4) contacted with first measured hole (6) in the bridge plate mechanism, the supporting cylinder of crossing on another bearing of bridge plate mechanism (4) (5) contacts with second measured hole (6), measuring the sensor (7) that diameter uses simultaneously contacts with first measured hole (6), the sensor (10) of measurement right alignment contacts with tested the 3rd hole (6), and measurement mechanism reads the data of each sensor automatically.Each later on axial distance that moves between one two hole, measure according to above same step, finish until measurement, can obtain the diameter, adjacent holes in each hole right alignment size by signal processing unit with each hole in the total length, and can in measurement result, carry out simple plus and minus calculation, to eliminate of the influence of diameter dimension deviation to the coaxality measurement result.
Moved bridge plate mechanism when measuring, and should rotate measurement mechanism, when making each the measurement, the level in the detent mechanism is in identical reading, with the influence to measurement result of the error that reduces measurement mechanism.Simultaneously, during as if right alignment in other cross section of needs measurement and diameter, can unclamp trip bolt (9), rotating shaft (8) makes sensor (7), (10) point to the cross section of surveying, and gib screw can be measured by above identical step.
The measurement sensitivity of this device is 0.1 micron, and measuring error also is applicable to other part of axial distance basically identical, each bore dia basically identical or the coaxality measurement of parts simultaneously less than 5 microns.
The utility model can also adopt the displacement transducer (as capacitive transducer, grating sensor etc.) of other type to substitute inductance displacement sensor; Adopt the bridge plate mechanism (as pole, bearing are made of one) excessively of other type.
Claims (3)
1. engine body main bearing hole coaxality measuring mechanism, this device is by crossing bridge plate mechanism, the coaxality measurement unit, positioning unit (1) and signal processing unit (2) are formed, it is characterized in that: displacement transducer (10) and corresponding rotating shaft (8) that the displacement transducer (7) that said coaxality measurement unit is used by the measurement diameter, measurement right alignment are used are formed, described two displacement transducers (7), (10) are fixed together with corresponding two rotating shafts (8), and two rotating shafts (8) flexibly connect with the both ends of crossing the pole (3) in the bridge plate mechanism.
2. engine body main bearing hole coaxality measuring mechanism according to claim 1 is characterized in that: the said length of crossing the pole (3) in the bridge plate mechanism is the twice axial distance in measured bearing hole.
3. engine body main bearing hole coaxality measuring mechanism according to claim 1 is characterized in that: described displacement transducer (7) adopts inductance displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241341 CN2283227Y (en) | 1996-10-28 | 1996-10-28 | Engine body main bearing dead eye axiality measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241341 CN2283227Y (en) | 1996-10-28 | 1996-10-28 | Engine body main bearing dead eye axiality measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283227Y true CN2283227Y (en) | 1998-06-03 |
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ID=33915765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96241341 Expired - Fee Related CN2283227Y (en) | 1996-10-28 | 1996-10-28 | Engine body main bearing dead eye axiality measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283227Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445026C (en) * | 2005-12-30 | 2008-12-24 | 广西玉柴机器股份有限公司 | Apparatus and method for clutch in situ adjusting engine driven disc axiality |
| CN100455980C (en) * | 2005-01-24 | 2009-01-28 | 青岛科技大学 | Coaxiality measuring instrument |
| CN1748880B (en) * | 2005-07-07 | 2011-06-22 | 大连理工大学 | Bearing accurately positioning device for large bearing cleaning machine |
| CN102410822A (en) * | 2010-09-21 | 2012-04-11 | 捷毅***股份有限公司 | Device and method for measuring thickness |
| CN102865802A (en) * | 2012-09-14 | 2013-01-09 | 西安航空动力股份有限公司 | Device for measuring coaxiality of bearing seat of aero-engine combustion chamber casing |
| CN103499275A (en) * | 2013-09-29 | 2014-01-08 | 苏州紫冠自动化设备有限公司 | Automatic detection system for concentricity |
| CN106403787A (en) * | 2016-08-29 | 2017-02-15 | 中航动力股份有限公司 | Detection device used for detecting material testing machine coaxiality calibration sensor |
| CN108857580A (en) * | 2018-08-01 | 2018-11-23 | 常州金坛环保设备有限公司 | Condition monitoring system for production line |
| CN111076657A (en) * | 2019-12-17 | 2020-04-28 | 安徽复兴电缆集团有限公司 | Cable eccentricity detection device |
| CN111521144A (en) * | 2020-05-13 | 2020-08-11 | 山西汾西重工有限责任公司 | Concentricity processing method and system |
| CN113959313A (en) * | 2021-11-02 | 2022-01-21 | 海洋石油工程（青岛）有限公司 | Standard stand column concentricity measuring device |
| CN114485363A (en) * | 2021-12-28 | 2022-05-13 | 上海航天控制技术研究所 | Cylindrical metal body clamping and non-contact positioning measurement device |
-
1996
- 1996-10-28 CN CN 96241341 patent/CN2283227Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455980C (en) * | 2005-01-24 | 2009-01-28 | 青岛科技大学 | Coaxiality measuring instrument |
| CN1748880B (en) * | 2005-07-07 | 2011-06-22 | 大连理工大学 | Bearing accurately positioning device for large bearing cleaning machine |
| CN100445026C (en) * | 2005-12-30 | 2008-12-24 | 广西玉柴机器股份有限公司 | Apparatus and method for clutch in situ adjusting engine driven disc axiality |
| CN102410822A (en) * | 2010-09-21 | 2012-04-11 | 捷毅***股份有限公司 | Device and method for measuring thickness |
| CN102410822B (en) * | 2010-09-21 | 2013-07-24 | 捷毅***股份有限公司 | Device and method for measuring thickness |
| CN102865802A (en) * | 2012-09-14 | 2013-01-09 | 西安航空动力股份有限公司 | Device for measuring coaxiality of bearing seat of aero-engine combustion chamber casing |
| CN103499275A (en) * | 2013-09-29 | 2014-01-08 | 苏州紫冠自动化设备有限公司 | Automatic detection system for concentricity |
| CN103499275B (en) * | 2013-09-29 | 2016-03-16 | 苏州紫冠自动化设备有限公司 | Automatic detection system for concentricity |
| CN106403787A (en) * | 2016-08-29 | 2017-02-15 | 中航动力股份有限公司 | Detection device used for detecting material testing machine coaxiality calibration sensor |
| CN106403787B (en) * | 2016-08-29 | 2019-08-06 | 中航动力股份有限公司 | A kind of detection device for calibrating sensor for detecting Material Testing Machine concentricity |
| CN108857580A (en) * | 2018-08-01 | 2018-11-23 | 常州金坛环保设备有限公司 | Condition monitoring system for production line |
| CN111076657A (en) * | 2019-12-17 | 2020-04-28 | 安徽复兴电缆集团有限公司 | Cable eccentricity detection device |
| CN111076657B (en) * | 2019-12-17 | 2021-06-08 | 安徽复兴电缆集团有限公司 | Cable eccentricity detection device |
| CN111521144A (en) * | 2020-05-13 | 2020-08-11 | 山西汾西重工有限责任公司 | Concentricity processing method and system |
| CN113959313A (en) * | 2021-11-02 | 2022-01-21 | 海洋石油工程（青岛）有限公司 | Standard stand column concentricity measuring device |
| CN114485363A (en) * | 2021-12-28 | 2022-05-13 | 上海航天控制技术研究所 | Cylindrical metal body clamping and non-contact positioning measurement device |
| CN114485363B (en) * | 2021-12-28 | 2023-09-29 | 上海航天控制技术研究所 | Cylindrical metal body clamping and non-contact type positioning measurement device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |